Apparatus for stretching dough and like glutenous material.



L. E MBREY. APPARATUS FOR STRETCHING DOUGH AND LIKE GLUTENOUS MATERIAL.

APPLICATION FILED APR. I4, 1915. I

1 171 331 Patented Feb. 8, 1916.

2 SHEETS-SHEET I.

THE COLUMBIA PLANOGRAPH'COU WASHINGTON, D. c.

L. EMBREY. I APPARATUS FOR STRETCHING DOUGH AND LIKE GLUTENOUS MATERIAL.

APPLICATION FILED, APR-14, 1915- 1,171,331 r Patented Feb. 8,1916.

2 SHEETS-SHEET 2, z 7

5 o 1 34 9- 51% w M 1 ll 7 6.9 T 75.5 35 22 70 20 I 29 22 100 z T 9 A THE CGLUMBIA PLANOGRAPH. co., WASHINGTON, D. c.

' readily understood from the following de-,

. ing in the direction of the arrow 3 in Fig.

sarinn: s'ra'rns rag-Eur OFFE LAURENCE EMBREY, OF FENToN ENGLAND. i

APPARATUS FOR STRETGHITNG DOUG-H AND LIKE GLUTENOUS MATERIAL.

To all whom it may concern:

Be it known that I, LAURENCE EMBREY, a. subject of the Kingof Great Britain, residing at F enton, Stalfordshire; England, have invented certain new'and useful Improvements in Apparatus for Stretching Dough and like Glutenous Material, of which the following is a specification;

This invention relatesto apparatus for molding dough bystretching'or tensioning it after theinanner described in the specification of my, prior patent application Serial No. 819809 filed 19th Feb. 1914. w

The object of the present invention is to provide improved apparatus for carrying the process described in the above mentioned specification into practical effect and more particularlv the 'eneral' object is to provide means for controlling the operation ordegree of working or stretching applied to the dough. r

To this end the inventlon comprlses means for timing the discharge of the dough from the spindle after it has been wound a predetermined amount that is to say after a predetermined number of turns has been applied to the dough.

A further object of thisinvention isto insure proper engagement'of the fed dough with the spindle.

The apparatus herein described is also designed to prevent access of flour, (such 7 as is used for dusting the parts, coining my contact with thedough) to the mechanism which drives and controls the spindle.

The invention the same into practical effect will be more scription of one convenient form illustrated by way of example in the accompanying drawings in which: g

Figure 1 1s an elevatlon looking. on one side of the apparatus with the side of thecasing removed and-the pivoted frame also in section. FigQ'Q' ispa'secti'on on the line.

ofFig. 1. Fig. 3 is an elevation look 2. Fig. 4 is a partialplan view showing the arrangement ofthe feeding conveyer arid the side conveyer at right angles thereto.

Fig. 5 i a diagrammatic view ofthe telling i operatiOE Specification of Letters Patent.

the operation of and the method of carrying PatentedFeb.8,1916. Application filedApril 14, 1915. Seria1 No.:21, 225.

In carryingithe invention into elfect'ac-" two free wheel drums ti and 7. The con-' veye'r band may convenientlybe of mole skin, cloth or felt. The drums f6 and? are supported, on spindlesS and 9, the spindle" 8 being mounted in brackets 10 fixed to the '65 casing 11,"while the spindle 9 passes across i 'the two walls of the casing 11, and is mounted in bosses 'cast or formed thereon'a I The drums are connected by a suitable free wheel device, not specially illustrated, to

felt or moleskin. These rollers are driven at a slightly greater circumferential speed than the band 5; as this is necessary to prevent the dough adhering to the rollers and causing-it to follow the band 5. The roller 13' reduces the clot of dough'by pressing it down on the band 5 which is reinforced below the roller by ;a bridge 15. The strip of the thickness of the'spaceb'et'ween the roller to the roller 14. 'Beneath' the roller 14 the band is pressedupward by ac unterbalfreely in a frame lT 'pivoted at 18 and weighted at 19. The weight 19 may if de sired beadjusted to vary the pressure and thus control the thickness of the strip" of This roller has also the effect of,

dough. thinning the ends and. thereby giving a smoother .outer surface when" the strip is coiled as hereinafter described. I

The strip of dough in the above treatment their spindles so that the band 5 can only move in the direction of the arrow 12; Mounted above the band 5 there are two rollers 13 and 14 which are alsocovered with anced roller 16"which is mounted torotate ture of'the gluten as the roller I3-first redu'ces the dough'to a convenient thickness to bethinned out and extended by the rollers 14 and 16."- Thestripiof dough now is .carried by the band- 'on to 'aspindle 20, which is rotating, being driven and pulled out and in at the proper times by thejmechani'sni'inside the casing- 11* and thereinafter ftlescribed. The spindlej20 is preferably. of cross or 5 squeeze the doughlen-bloc and tensionone side while-it puckersthe other so that there isv no 1 permanent stretch supplied .to the dough l f aloal molded by@the means do.- scribed is 'cut,:the section shows regular cir.-. cular striations of the. gluten with elongated cells in it; a structurewhiclr those acquaint ed with the art ct bakingwvillunderstandis highly desirable, --especial-ly when its is asso:- ciated,ras in the case of the present process. with a :total absence of broken oretractured strands of gluten Tnother words the gluten is-stretched but notjhroken. As the coil of dough increases-in diameter the spindle rises; owing to its method otmounting in a= pivoted irame fil Thisframe s:part1a.lly

I counterbalanced by -.weights a3 and is .pi

oted alsoutthe same center as the' roller-let, that-1s to say. the center 245 lILFlg. :1..- By:

this means-a light external pressure is ape pliedto the-coils as theyipass on to the spindleand therehy'one'coil is lightly pressed to the-coilim-mediately within it and the-ten sion is thereby maintained without. the aid of'further' mechanical means This inaintenanceof-theiension: lasts throughout the process; ofprovin' z l Vhen the coiling process has been carried out for a 'sufiicient time, usually about: to:

12* turns ofthe; spindle sutfice, the molded dough is removed from the spindle by withdrawing the; spindle 1 from the" proj ecting position-shownin Figa -v2 to a positi n within the-'--casing 11. The-casing ll pro: vid edwith an aperture to "permit the. risin mfovementzofthe spindle as the coil ott' dough grows and-this aperture is closed-to prevent ingress oii dust by means oif'a disk-SO which'moves upward with thespin'dlc. The averageamount 0t the stretch imp ZILtG-il to the dough strip is about 25%, that is-to say, the average circumferential speedof the spindle is about'Q greater than-thelinear speed ot the band 5, so that there is an actual extension 0tthestrip=-in winding.it ou 3 to thespindle=20w Referring; now more particularly to the mechanism for-producing .the above results; W

the entire mechanismis inclosed-inia-b ox or. casing' ll and is consequehtlyireelfrom dustor lll6 COI1i321l11ll1ifiOIl n01 can the lubricati-on used-get at thedoughr The mecha nismz is driven by a pulley 27 inounted on ashaft 7 28 which passes the whole width of the casingand finds 1ts hearings in the walls thereof. The shaft 28 has a toothed wheel 29 fixed thereon and this wheel gears with a relatively large wheel 30 fixed on the driving shaft 24, which is supported partly in the sidewall'of' the casing 11 and partly in a-hracket '78. The shaft 2% extends outside. the' casing 11 to take the roller 1%. The roller 1% is connected up to the roller 13 by a cord 31. The wheel 'also engages with a Wheel 82 mounted on a shaft 38 which also has. fixedon it a chain wheel 3% The chain wheel 3st engages with and drives a. chain 35 which in turn drives a chain wheel 36011 .the spindle 9 on which th roll I drum -7 is mounted.

Thedrum 7 is provided at its edge nearest to the casing ,ll'with agroove which receivesa cord .37" for driving; a roller 38. The-roller. 38 is mounted on a spindle which is. supported-in the wall of the casing 11 and fixed to. pivot with arms The arms 40 are counterbalanced by a weighted arm 41. r The arms 40 also carry a roller 4&2 at their lower ends and thisroller normllv rests nearthe spindle 20 at its lowest point and on the side ofthe spindle remote from thatbywhich the dough is fed' A band passesuaround the rollers .38 and a2. The purpose otthis band is to move or lap the strip of dough up to insure its engaging with the spindle 20. As the coil of dough increasesin: diameter, the arms 40 swing about thepivot 38 and the weight of the armAl passes over the center. The arms t0 are then. swungaway and the band :23 and roller 42 are removed out of the path of the molde-dor stretched dough discharged from the-spindle 20. Stops oand s26 limit the movement of the arm ll and consequently of the band 4:3. The-.means for returning the hand e3 to .its initial position for lapping-,the-dough. around the spindle will he described later.

The .wheel. 30 engages witha further pin ion 48 (see Fig. 1), which in turnengages with apinion-z4l9 both of which are mounted in. the frame 22which isloosely pivoted about thedr ivingzsha'ft 2i." An arm 50 on the frameraids in. supporting the pinione 4:8.ande49 with their spindles. The pinion 49 may conveniently have its central bore shapedto the shape ofthe spindle20 on which it -is':mounted. In thisv way the spindle :is rotated about its axis. while it is free to,swing;with the loosely pivoted frame 2:2 about-'thepivot 2% as the coil of dou h increasesin diameterv On-the driving shaftQ there is also mounted a .pinion;:51.which engages and drivesa spur wheel52 on a shaft 65. This shaft :65 has-mountedloosely omit the timing cam 53 and has fixed on it a ratchet The ratchet 541s continuously rotatin passes under the spindle 20, this spindle rises and thereby causes the frame 22 to oscillate about its pivot 24. An arm 56 con} nects the frame 22 to one arm 57 of an angle lever, the other arm 58 of which has a head f Y the endof the spindle 20 in its projecting piece engaging a pin 59 on a clutch pawl 60 pivoted at 61 to the timingcam 53. The rising of the frame 22 will thus liberate the pawl 60 which under the action of a spring 62 springs into engagement with the ratchet 54 thus forming an operative clutch connection whereby the cam 53 commences to 1'0- tate'also in the direction of the arrow It will be understood that the engagemen't of the clutchmechanism describechis initiated by the strip of dough fed forward by the band 5 under the spindle 20. The cam 53 has two sloping bars 63 and 64 fixed thereon,.which after a suitable nurnberof revolutions of the spindle 20, come nto 0p 3 eration to Withdraw the spindle 2O within" the casing 11 and thereby remove the dough therefrom. The action of withdrawal of the dough is thus also initiatedby the fed strip itself. The number of revolutions is determined by the ratio of the gearing 30- 5152 and the gearing 30-48 19,. In the form shown the small wheels 51, 48 and 49 are all one third of the large wheels 30 and When the cam 53 hasmade'practically a complete revolution or from about {the to g-ths of. a revolution to be more accurate, the I cam bar 63 comes into engagement with a pin or roller 66 onan arm 67 pivoted at 68 through the arm 69 with its end 7 0 embracing the spindle 20 moves the spindle from its projecting position to a position within the casing 11. Shortlythereafter the cam 64: operates the arm 67 to return the splndle which is now in its lowest position owing to the molded dough having been discharged or separated from the spindle 20 and the pawl is thus removed from engagement with the ratchet 54.

Practically at the same time as the cam bar 6-1 operates the arm 67, a cam r1se 71 carried by and moving with the timing cam 53 comes into engagement with a lever 72, pressed by a spring 72?, the lever beingpivoted at 73, and having an arm 74cadapted to engage a push rod 75 guided to slide vertically, in brackets 76. The upper end of the push rod 75 engages a pin 77 on. the spindle 39 and thereby returns the band- 38 and arms 40 into their operative position shown in'Fig. 3 where the pivoted conveyer 43 is effective to lap thefed strip of dough aroundthe spindle 20. V

-The' outside edge of the dough may be retained in proper position on the spindle20,k.

by the means indicated in Fig. & where a The ratio of the revolutions is thus 9 :1.

moving band is arranged in 'a vertical. 7

plane at right angles :to the band 5 with its.-

top edge about the height of the center of I i the spindle when a full clot has been wound on the spindle. v

The band or conveyer 100 comes opposite position. I It may conveniently be mounted .on columns-101 supported in brackets 102 andibe driven from the shaft!) by bevel wheels 103 and 104.

I claim by the spindle to the dough. 7 g g Y 2. In a machine for. stretching dough, means for feedingdough, ,a rotary spindle to engage and wind the'feddough,-means for separating the wounddough from the spindle, and means operableby the "dough to determinethe number of turns applied to the dough by the spindle Tn'jja machine for stretching dough,*'af

rotary I spindle to engage and -wind the" dough, means for separating the wound l dougnjfrom the spindle and means for timing the operation of said separating means to occur after a predetermined number of turns-has'been'applied to the dough.-

4. In a machine for stretching dough, a rotary spindle to engage and wind the dough, said spindle being movable axially and means fortiming'the axial movement to the frame 22. The arm 67thu s swingsfrom left to right in Fig. 2 and thereby of the spindle to occur after a predetermined number of turns has been applied to the dough. f e 1 a machine for stretching dough, i

means for feeding dough, a rotary spindle to engage and wind'the fed dough into a" coil about itself, means for dr ving said spindle, means for withdrawing said spindleaxlally, acam for operating said w thdrawing means, a clutch'for driving said cam, meansfor driving said clutchand means operated 'bythe' fed strip of'dough for engaging said clutch withsaid cam. I

6. In a machine for stretching dough, a

rotary spindle to engage and; wind the dough, driving means for said spindle," means for'withdrawing said splndle axially,

a cam for operating said means,'a clutch for driving said cam, means for drivlng sald clutch and means dependent upon the engagement of the dough with the spindle for throwing said clutch into engagement with its driving means.

'7. In a machine for stretchingdough, 'a 1 rotary spindle, a pivoted frame in 'which"' saidspindle'is mounted'to rotate and slide."

axial ly, means for moving said spindle.

axially, timing mechanismv controlling .the i I roperationziof said means and means, operable on. the tilting. 0f. theframe. supportin 1:.- nallyto said casing atthe side to which the the. spindle, forv starting.w said, timingmech: anisme.

8, In a. machine for stretching dough, a rotary spindle, a pivoted frame. in Winch;

ling the operation of saidmeansand meansv operable 0n the tilting of the; frame sup? porting the spindle, for starting saidtiming mechanism.

9;.In, a machine for stretching-',dough, -a drivingshaft, a frame loosely pivoted about said driving shaft, rotary spindle axially slidfable in said frame, gearing. from said shaft to said spindle: and meansforperiodically moving said spindle axially.

10. Ina machine, forstretching dough, a driving shaft, a frame loosely pivoted about said drivingshaft, means for counterbal ancingsaid frame on. the side of the pivot remote from said spindle, a rotary spindle axially slidable in: said frame,.gearing from said driving shaft to said spindle and means for periodically moving: said spindle-axially.

11.- In a machine for stretching dough, a

- driving shaft, a frame loosely pivoted on said shaft, a rotary spindle 'axiallyslidable in said frame, aca-m rotatable between the sides of theiframe, alever mounted on said frameand cotiperating with said cam, and said. spindle to slide the spindle axially, clutch mechanism for drivingsaid cam and means operable by -the tilting of said frame for engaging said clutch.

12. In amachine for stretching dough, a driving shaft, a frame loosely pivoted on said shaft, a rotary spindle aXially-slidable in said frame, a cam rotatable between the sides .of the frame, a lever mounted on said, frame and cooperating Wltll said cam, and said (spindle to slide the spindle axially, clutch mechanism for driving said cam, means operable by the tilting of said frame for engaging said clutch and -a casing inclosingsaid mechanismand having an open ing through which. the rotaryspindle projects inoneposition of itsaXial movement.

13. In a machinefor stretching dough, a driving shaft, a frame-loosely pivoted on said shaft,a rotary spindle axially slidable insaid frame, a cam rotatable between the sides of the frame, a lever mounted on said frame and cooperating with said cam andsaid spindle to slide the spindle axially, clutch mechanism for driving said cam, means operable by the tilting. of said fra-me for engaging said clutch, a; casing inclosmg said mechanism and having an opening.

through which the rotary-spindle projectsin one .position of itS flXl2Ll movement and moving; oarse and-5;: q n e s spindle 'proj ects;

14:; In avmachine for. stretching; dough, a rotary spindle to. engage and/Wind the dough, means for. feeding,-dough=to the spindle, meanscfor-lapping, the dough around the spindle and means. operable by; the dough to determine-the, number of turns applied. by thespindle to, the dough.

l5;,In a'machine, for stretching dough, a rotaryspindle to engage: and Wind the douglna conveyer-band to. feed the dough to said. spindle, said band passing. directly beneath said spindle, a, pivoted. .conveyer band. located over the said. feeding band and on the sideof-vth'e spindle remote from that by Which the dough; is fed;

16; In a machine for stretching. dough, a rotary spindle to engage and 1 Wind the dough, meansv for feeding dough to the spindle, means for lapping. the dough around the spindle, means for separating. thewound dough from-the'spindle, means for timing the operation; of said separating means to occur after a predetermined. number of turns has been applied. tothe dough and means operable Withsaid timing. means for! bringing the lapping means into operative position.

17 In a machine for. stretching dough, a rotary spindle to engage and Wind the dough, a casing, mechanism Within said ca ing forrotat-ing said spindle and Withdrawing said spindle axially from projecting position to a positionwvithin the casing, a conveyer external tc-thecasing. and located directly beneath" the spindle, a pivoted conveyer for lapping dough fed bysaid first mentioned conveyer around the spindle and means OPQIZIblGWVlth' the spindle WithdraW- ingmechanism for bringing said pivoted conveyer into operative position.

1.8.In amachine for. stretching dough, a rotary spindle to engage. and Wind the dough, a casing, mechanism Withinsaid casing for rotating; saidspindle and- Withdrawingsaid spindlewaxially from a' projecting position to a position Withinthe casing, a conveyerexternal to the casing and located directly beneath the spindle, a pivoted eonveyer for lappingdough fed by said. first mentioned conveyer around the spindle, a counterbalance Weight for throwing said pivoted conveyor out= OfrthB path of the stretched doughndischarged from said spin dle subsequent to saidlapping operation and means'operable With the spindle Withdrawing; mechanism for bringing said pivoted conveyer-into operativeposition.

19. In a dough stretching machine, a rotary: spindle to. engage and Wind the dough, a casing, mechanism Within said casingfor rota-tingrsaid spindle and Withdrawing; the same ."azgiallyfrom-z a-proj ecting posi- In testimony whereof I have signed my name to thisspecification in the presence of two subscribing Witnesses. 1 LAUREN CE EMBREY.

Witnesses:

- VINCENT FLACKETT,

FRANK MODSLEY.

tion into a position Within the casing, a 0011-" Veyer located externally to said casing and passing beneath the spindle in its projecting position, and a conveyer at right angles to said first mentioned conveyer and located to pass the end of the spindle in its projecting position;

Copies of this patent may be obtained for' five cents each, by'addressing' the f Commissioner of Patents.

- Washington, D. G. 

